My latest suggestion to the L of C, via their suggest terminology doohickey:
I recommend changing the terminology for http://id.loc.gov/authorities/sh85110842#concept from "Ragpickers" to:
Well actually, what I'd really like to see is a subject heading for Dumpster diving and a cross reference from Dumpster divers to Ragpickers.
Photo by October Hush
A keyword search for "dumpster diving" yields 15 results in your catalog. Empire of Scourge might make a nice warrant http://lccn.loc.gov/2005016303. While we're on the topic, related terms Freegans and Freeganism would also be most useful. I know you have documentation on those, courtesy of Sandy Berman.